Measurement and Simulation of Residual Stresses of Electron Beam Welding Joint of Pure Aluminum
The effects of electron beam welding on the residual stresses of welded joints of pure aluminum plate 99.60 are studied by through-hole-drilling and blind-hole-drilling method.Meanwhile,based on the thermal elastic-plastic theory,and making use of ANSYS finite element procedure,a three-dimensional finite element model using mobile heat source of temperature and stresses field of electron beam welding in pure aluminum is established.The welding process is simulated by means of the ANSYS software.The results show that the main residual stress is the longitudinal residual stress,the value of the longitudinal residual stress is much larger than the transverse residual stress.But the residual stress in the thickness is rather small.And in the weld center,the maximum value of residual stresses is lower than its yield strength.The simulation results about the welded residual stresses are almost identical with the experimental results by measuring.So the research result is important to science research and engineering application.
electron beam welding actual measurement finite element residual stress
Guifang GUO Shiqiong Zhou Wang Liang Li Hao Zeguo Liu
Information Engineering Department, Tibet University for international, China Shenzhen Institute of Information Technology, China
国际会议
香港
英文
649-652
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）